Multiple-horizontal-unit boiler.



E. C. MEIER.

MULTIPLE HORIZONTAL uwn BOILER.

APPLICATION FILED AUG-6.1915.

Patented May 30,1916.

3 SHEETS-SHEET 1.

31 111011 foz q vifwcmco E. C. MEIER.

MULTIPLE HORIZONTAL UNIT BOILER.

APPLICATION FILED AUGI6. I9I5.

Patented MayBO, 1916.

3 SHEETS-SHEET 2 I H'eooeo E. C- MEIER.

MULTIPLE HORIZONTAL UNIT BOILER.

APPLICATION FILED AUG-6,1915.

Patent-ed May 30, 1916 MQW.

9m 7 m 3 4 m m a 22 a a E 5 AN 6 l 71 myw a D X}, k O Q 6 H I a In qw 000d Wrasse/a EDWARD C. MEIER. 0F PHOENIXVILLE, PENNSYLVANIA.

MULTIPLE-HORIZONTAL-UNIT BOILER.

Application filed August 6, 1915.

To all whom z'tmay concern:

Be it known that I, EDWARD C. MEIER, a citizen of the United States, residing at Phoenixville, in the county of Chester and State of Pennsylvania, have invented certain new and useful Improvements in Multiple-Horizontal-Unit Boilers, of which the following is a specification.

My invention relates to improvements in multiple horizontal unit boilers, the object of the invention being to provide a boiler of the. type stated in which a cross drum is connected with a plurality of horizontally positioned boiler units having an improved arrangement of combustion and super-heating chambers with an improved arrangement of dampers, whereby the heat may be directed as desired.

A further object is to provide a boiler of the character stated in which a plurality of super-heating chambers are provided with means for regulating the flow of smoke and gases to both of said chambers, whereby the temperature of one may differ from the temperature of the other in accordance with the work to be done by the super-heated steam.

A further object is to provide a boiler of the character stated in which one of the super-heating chambers may be utilized as an auxiliary combustion chamber, augmenting the heat of the fire for any purpose desired.

A further object is to provide a boiler in which the units of the fuel are utilized to the maximum extent, and regulated to suit the operator.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a view in vertical longitudinal section illustrating my improved boiler. Fig. 2 is a vview in transverse section on the line 2-2 of Fig. 1. Fig. 3 is a fragmentary view in "section illustrating the tile partition 21. Fig. 4 is a view similar to Fig. 1 illustrat- Specifieation of Letters Patent.

Patented May so, rare.

Serial No. 43,955.

ing a preferred form of my invention where a large capacity is desired.

A represents a cross drum which is connected by telescoping necks 1 with the box header 2 of a boiler unit B below. This boiler unit B consists of two box headers 2 and 3 connected by water tubes 4, and also comprises a plurality of relatively large boiler, and 10 is 'an inlet pipe for supplying water to the pro-heater.

D represents a super-heater which is located below the.pre-heater, and connected by a pipe 11 with drum A to receive the steam from the drum, and 12 is the outlet for super-heated steam.

The several parts above described are supported and inclosed in furnace walls 13, and a floor 14 is supported on the tubes 5 dividing the furnace structure into an upper super-heating chamber 15 and a lower steam generating chamber 16. The floor 14 is provided with two openings 17 and 18, the former' controlled by a damper 19, and the latter communicating with the stack 20.

The super-heating chamber 15 is formed above the floor 14 by tile 21 on the tubes of pre-heater C, and by a transverse partition wall 22, the latter having an opening 23 therein communicating with stack 20 and controlled by a damper 24.

25 represents a damper controlling communication of the steam generating chamber 16 with the stack 20, and vertical flues 26 are located in the side walls of the furnace and connectthe fire box 27 directly with the super-heating'chamber 15.

The pre-heater' C and boiler unit B are provided with bailles 28 which direct the smoke and gases in a circuitous path as is customary. The lowest bafiie 28 of the boiler unit B at'the forward end or adja cent header 2 is made with an opening 29 which may be provided by omitting some of the tiles of the baflle, so that a portion of the smoke and gases may pass through this opening as desired.

By opening the dampers 19 and 24, and closing damper 25, all of the products of combustion will be directed into the superheating chamber 15, so that the super-heater D will receive the maximum of heat units. By closing the damper 19, and leaving dampers 24 and 25 open, the greater portion of the smoke and gases will pass through the stack 20 after first circulating through the boiler and pre-heating units, but a portion of the heat will always pass to the super-heating. chamber. as it will flow through the flues 26, hence by the arrangement of dampers above described, the smoke and gases may be directed as desired, and in any event, smoke and gases which would otherwise be wasted are utilized in heating the water in the pre-heater, and the maximum of heat units of the fuel are utilized.

WhileI refer tothe openings 23 and 18 as communicating with the stack 20, it is to be understood that one of the bafiles 28 of the pre-heater C extends entirely across the stack, so that the smoke and gases are compelled to pass through the pre-heater before escaplng.

In the boiler illustrated in Fig. 4, in addition to the drum A, steam generating boiler unit B, and pre-heater C, I employ an additional steam generating boiler unit E below the unit B, and provide between the units B and E, a super-heating chamber 30 with a super-heater F therein, connected by a pipe 38 with drum -A and having an outlet 39. This chamber 30 may also constitute a combustion chamber to supply additional products of combustion as desired, and to illustrate this feature I have shown diagrammatically an oil burner 31 projecting into the chamber, although I may, of course, utilize other heat generating means. The chamber 30 has an inlet 31 and an outlet 32 controlled by a damper 33, and as this-combination of units will require a large amount of heat, I have shown two fire boxes 34 below at both ends of the boiler units. The damper 33 is not only adapted to close the end of chamber 30, but also is adapted to close the opening in the'end of the bafile tile so as to cause the smoke and gases to'takc the direction ofthe arrows in accordance with the positions of the damper. In other words, when this damper 33 stands vertical, the bottom super-heater gets no direct heat and gases, butwhen lying horizontal, the direct heat and gases pass through the chamber 30. V

In Fig. 4, I show water circulating pipes 35' and 36, the former connecting drum A with the boiler unit E, and the'latter connecting the two boiler units at the opposite end. Also in this modification, in addition to the large tubes 5, I employ a series of smaller tubes 37 located above and below the tubes 5 to carry an additional amount of water and increase circulation. In this modification, I have indicated parts whichare like Fig. '1 by the same reference characters, and the operation is substantially the same except of course, that the products of combustion may be directed through the superheating chamber 30 in addition to the other compartments and chambers of the furnace structure.

One important feature of the boiler shown in Fig. 4 is that the super-heaters D and F may receive a different degree of heat, and it sometimes happens that a boiler may be called upon to furnish super-heat of different temperatures for use in connection with engines located at various distances from the boiler.

My invention readily lends itself to an addition of this character, as the engineer can supply super-heated steam of two temperatures just as required.

In connection with the boilers, I have shown various attachments which are common in boiler structures, and are not described in detail, and I would have it understood-that I have not attempted to illustrate all of the many detailed features with which a boiler of this character may be equipped, such as clean out doors, man-holes, hand-holes, and other details of construction common in boilers.

Various other changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

, Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A boiler, comprising a cross drum, a steam generating boiler unit below the drum and communicating therewith, a pre-heater located above the drum and communicating therewith, a damper controlled super-heating chamber formed between the pre-heater and the steam generating boiler unit below, and a super-heater in said chamber, substantiall as described.

2. A oiler comprising a cross drum, a steam generating boiler unit below the drum and communicated therewith, a pro-heater located above the drum and communicating therewith; approximately horizontal partition walls forming a chamber between the pre-heater above and the boiler unit below, a super-heater in said chamber communicating with the drum, and means for controlling the flow of smoke and gases through said chamber, substantially as described.

3. A boiler comprising a cross drum, a steam generating boiler unit below the drum and communicated therewith, a pre-heater located above the drum and communicating therewith, and a super-heater located between the pre-heater and the steam generating boiler unit, a second steam generating boiler unit spaced below the first-mentioned boiler unit and communicating therewith and with the drum, walls forming a superheating chamber between the steam generating boiler units, a super-heater in said lastmentioned chamber communicating with the drum, and a damper controlling the flow of smoke and gases through the last-mentioned chamber, substantially as described.

4. A boiler comprising a cross drum, a steam generating'boiler unit below the drum and communicated therewith, a pre-heater located above the drum and communicating therewith, partition walls forming a chamber between the pre-heater and the boiler unit, a super-heater in said chamber communicating with the drum, means for controlling the flow of smoke and gases through said chamber, a second steam generating boiler unit spaced below the first-mentioned boiler unit and communicating therewith and with the drum, walls forming a superheating chamber between the steam generating boiler units, a super-heater in said lastmentioned chamber communicating with the drum, and a damper controlling the flow of smoke and gases through the last-mentioned chamber, substantially as described.

5. A boiler comprising a cross drum, a steam generating boiler unit below the drum and communicated therewith, a pre-heater located above the drum and communicating therewith, partition walls forming a chamber between the pre-heater and the boiler unit, a super-heater in said chamber communicating with the drum, a damper controlled inlet and a damper controlled outlet in the walls of said chamber, and a third damper controlling the direct outlet from the steam generating boiler unit into the stack, a second steam generating boiler unit spaced below the first-mentioned boiler unit and communicating therewith and with the drum, walls forming a super-heating chamber between the steam generating boiler units, a super-heater in said last-mentioned chamber communicating with the drum, and a damper controlling the flow of smoke and. gases through the last-mentioned chamber, substantially as described.

6. A boiler comprising a cross drum, a pre-heating boiler unit above the drum, a steam generating boiler unit below the drum, partition walls between the boiler units forming a chamber, a super-heater in said chamber, a combustion chamber below the lowest boiler unit, flues in the walls of the boiler furnace structure connecting at all times the combustion .chamber and the super-heating chamber, a second steam generating boiler unit spaced below the firstmentioned boiler unit and communicating therewith and with the drum, walls forming a super-heating chamber between the steam generating boiler units, a super-heater in said last-mentioned chamber communicating with the drum, and a damper controlling the flow of smoke and gases through the last-mentioned chamber, substantially as described.

7. A boiler comprising a cross drum, a pre-heating boiler unit above the drum, a

steam generating boiler unit below the drum, partition walls between the boiler units forming a chamber, a super-heater in said chamber, a combustion chamber below the lowest boiler unit, and damper controlled openings controlling the flow of smoke and gases through the super-heating chamber, a second steam generating boiler unit spaced below the first-mentioned boiler unit and communicating therewith and with the drum, walls forming a super-heating cham ber between the steam generating boiler units, a super-heater in said last-mentioned chamber communicating with the drum, and

a damper controlling the flow of smoke and gases through the last-mentioned chamber, substantially as described.

8. A boiler of the character described, comprising a cross drum, a pre-heating boiler unit above the drum, a steam generating boiler unit below the drum, said lastmentioned unit having horizontal relatively large water tubes, a floor partition supported on said tubes, a tile partition supported on the tubes of the pre-heater and forming with the floor partition a chamber between the boiler units, a super-heater in said chamber communicating with the drum, damper controlled passages regulating the flow of smoke and gases through the superheating chamber, a second steam generating boiler unit spaced below the first-mentioned boiler unit and communicating therewith, and. with the drum, walls forming a superheating chamber between the steam generating boiler units, a super-heater in said last mentioned chamber communicating with the drum, and a damper controlling the flow of smoke and gases through'the last-mentloned chamber, substantially as described.

9. A boiler comprising a cross drum, a pro-heating boiler unit above the drum, a steam generating boiler unit below the drum, partition walls"'between the boiler units forming a chamber, a super-heater in said chamber, a combustion chamber below the lowest boiler unit, and damper controlled openings controlling the flow of smoke and gases through the super-heating chamber, a second steam generating boiler unit spaced below the first-mentioned-boiler unit and communicating therewith and with the drum, walls forming a super-heating chamber between the steam generating boiler units, a super-heater in said last-mentioned chamber communicating with the drum. and a damper controlling the flow of smoke and gases through the last-mentioned chamber, and means for directing an auxiliary heat supply into the last-mentioned 

